How to maintain car batteries and what are the misunderstandings?

　　The electrolyte level of the car battery should always be maintained between max and min, and should be checked once a month. Any use of electrical equipment for a long time after turning off the engine will lead to excessive discharge of the battery. Here is a detailed introduction to "How does a car battery work?" Maintenance and usage misunderstandings”.

　　1. How to maintain car batteries

　　1. The electrolyte level should always be maintained between max and min. Check it once a month. Depending on the drop in the level, add distilled water (pure water) appropriately and do not add acid.

　　2. When the voltage of the battery is insufficient, the lights are dim, and the car cannot start, it should be charged outside the vehicle in time.

　　3. Prevent the battery from overcharging or long-term power loss. Overcharging will cause the active material to fall off, and power loss will cause the plate to be vulcanized. Make sure that the voltage of the regulator is not too high or too low.

　　4. During use, you should always check whether the exhaust hole is clear to prevent the battery from deforming or bursting.

　　5. The battery should be kept away from heat sources and open flames, and ventilation should be maintained during charging and use to prevent burning and injury.

　　6. To prevent the battery from being discharged with high current for a long time, the start-up time of each use should not be greater than 5 seconds, and the time between two consecutive starts should be 10-15 seconds.

　　7. The battery should be installed firmly on the car to reduce vibration.

　　8. Always check whether the battery connection cable is firm and all loose joints must be in good contact to prevent sparks from causing the battery to explode. The oxides and sulfates produced by the battery clip must be scraped off and coated with Vaseline to prevent further corrosion.

　　9. Always remove dust, dirt and spilled electrolyte from the battery cover to keep it clean and dry to prevent self-discharge.

　　10. Cracks in the sealing tape must be repaired in time.

　　11. When driving in cold areas, avoid completely discharging the battery to prevent the electrolyte from freezing.

　　2. Misunderstandings about the use of car batteries

　　1. Any operation of using electrical equipment in the car for a long time after turning off the engine will cause the battery to be over-discharged. For example, if you forget to turn off the lights after parking at night, the engine will not start the next day. A large part of the reason is due to the failure to turn off the car in time. Turning off the lights causes the battery to become depleted, at which point the battery's performance may have been significantly reduced.

　　2. After shutting down the engine, you should try to avoid using electrical equipment for a long time, such as audio, DVD, radio, lights, air conditioners, etc. The time should not exceed 30 minutes. If you must use electrical equipment, it is best to start the engine with the generator. electrical energy.

　　3. When the engine is started, the battery will discharge with high current, but long-term high current discharge will greatly damage the battery. The starting time of each start should not exceed 5 s. If it is started twice in a row, there should be an interval of 10~15 s in between.

　　4. Since the raw materials for manufacturing batteries cannot be 100% pure, there will always be impurities mixed in the middle, so the battery will inevitably have automatic discharge. The anti-theft alarm also needs electricity after turning off the engine. Therefore, for a long time When a vehicle is parked and not in use, the battery may be over-discharged. If the vehicle is parked for more than a week, please remove the negative connector of the battery and cut off the power supply.

　　5. Try to avoid using the car battery with external high-power electrical equipment. Such equipment consumes a lot of power and may cause the battery to over-discharge. If it must be used, it is best to start the engine while using it and let the generator Powered by the battery together.

　　6. Do not overcharge. If the voltage regulator of the car generator is set incorrectly, the output voltage of the generator will be high. When the charging voltage exceeds the maximum limit voltage of the battery, overcharging may occur. At this time, If the fault is not checked and eliminated in time, the battery will overheat, causing abnormal consumption of electrolyte. Overcharging will accelerate the decomposition of active materials on the battery plates, causing battery failure.

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